The Community for Technology Leaders
2012 16th Panhellenic Conference on Informatics (2012)
Piraeus, Greece Greece
Oct. 5, 2012 to Oct. 7, 2012
ISBN: 978-1-4673-2720-6
pp: 433-438
Data are organized/stored in a plethora of different databases, locations and data models. In many cases, companies and organizations utilize data stored in a variety of data models at remote database servers. A challenge would be to construct queries that join data from such disparate sources. In this paper, we report on research work relating to graphical query languages and data modeling. More specifically, we report on a new software tool for the novice user, one that transforms databases of different data models (Relational, Object-Relational, Object-Oriented) into an equivalent XML model, plus on a new graphical XQuery type query language that facilitates the construction of user queries that join data from different data models.
XML, Database languages, Databases, Data models, Object oriented modeling, Syntactics, Graphical user interfaces, XQuery, Graphical Query Languages, Relational Database Model, Object-Relational Database Model, Object-Oriented Database Model, Semi-structured Database Model

P. Pouyioutas, G. Evangelidis, I. Deligiannis, E. Keramopoulos and D. Dervos, "HERMES: A Tool for Querying Heterogeneous Data Stores," 2012 16th Panhellenic Conference on Informatics(PCI), Piraeus, Greece Greece, 2012, pp. 433-438.
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